Receptacle closure



Jan. 1, 1929. 1,697,074

H. K. LORENTZEN RECEPTACLE CLOSURE Filed April 20, 1927 Patented Jan. 1,

narrstares RECEPTAGLE CLOSURE.

Application filed April 20, 1827 Serial No. 185,089.

This invention relates V to a receptacle closure, and aimsPilitlCliliil'lZ/ to nnprove the construction of hinged lids.

The invention provides a structure in which spring meansere used to biasthe lid toward the rcarot the receptacle and thereby maintain anauton'iatically tight frictional contact between. the forward edges ofthe lid and rec/ep'tacle.

A further ature of the invention resides in uti zing these same springmeans for hold-- g. .10 .li l in open position.

Additional objects a' d advantages will. appear as the descriptionproceeds.

While a preferred embodiment of the invention has been disclosed forpurposes of illustration, it should be understood that various changesmaybe made in the structure without departing from the spirit and scopeof the invention as hereinafter set forth and claimed.

In. the drawings:

Fig. 1 is a plan oi a box embodying the invention, parts being brokenaway.

Fig. 2 is a front elevation oi the box.

Fig. 3 is an end elevation of the box.

Fig. 1 is a fragmentary perspective of the lid. I

Fig. box.

Fig. (i is a section on line 6-4) of Fig. 1..

Fig. 7 is a section on line 77 of 1.

Referring to the drawings more particularly, the reference numeral 10indicates a. box formed of metal or other suitable material having endwalls 11, a front wall 12 and a rear wall 13. The upper edges of thefront and end walls carry an outwardly-curved rounded bead 14.

The upper edge of the rear wall is formed at its central part with arearwardly and downwardly extending lip 15, and with lips 16 spaced fromlip 15. The lips 16 merge into the rim 1i and are longer than the lipand carry inwardly directed angular flanges 17.

The closure lid 18 is provided with a rounded overhanging flange 19adapted to it over the bead l lpand carries at the center of its forwardedge a rigid clip 20 with a locking indent 20 for engagement beneath thehead 14-. At the rear side of the lid the flange 19 is extended and bentinwardly at 21, the extension being formed with laterally projectinghinge members 22.

vi lien the lid is in place on the box the hinge members extend underthe lips 16 as 5 is a fragmentary perspective oi the will be clearfrom 1. An openin 23 is 'icrn ed through the lower rear corner of thebox just below the interval between each lip 16 and the lip 15, and aflat spring 24 is lastenedto thebottom of the box and extends throughthe aperture '23 .to engage agains the inner face .ofextension21 (Fig.(3),.

In the structure above set forth the springs 2d at .all times press thehinge members 22 back toward the flanges 17, although when the lid isclosed Fig, the engagement of the clip 20 over the forward edgeof head14- pulls the lid to the front against the pressure of the springs andkeeps hinge members 21 out of contact with the flanges 17. Duringopening movement of the lid the springs press the hinge members againstthe flanges 17 causing them to pivot in the angle formed between thelips 16 and the flanges 17. Due to these features or". construction theclip 20 is always pressed firmly back against the head 1% when the boxis closed, and since rearward movement 01 the lid is limited solely byengagement between the forward edges of the box and lid, wear isautomatically taken up and the lid remains firmly closed. At the sametime the springs serve to hold the lid in the opened position of Fig. 6,in which position the inner side of the hinge members 22 engage theinner side of flange l6 and the part of lid flange 19 lying just abovethe extensions 22 engages the flange 17. (See Fig. 7.)

The inturned flanges 17 keep the hinge members 22 from working down.

Due to the arrangement and leverage oi the parts, the springs furnishonly a moderately light resistance to opening and closing move ments ofthe lid.

1 claim 1. In combination, a box, a lid fitting Over the box, a flangeextending downwardly from the rear edge of the lid, angular lips carriedby the box and adapted to engage parts carried by the flange duringswinging movement of the lid, a part carried by the box and engaging theflange to limit opening movement of the lid, and spring means engagingthe flange and biasing it rearwardly toward the angular extensions.

2. In combination, a box, lips extending rearwardly from the rear edgeof the box, said lips having inwardly directed angular extensions, a lidfitting over the box, the forward edge of the lid having a flangeengaging the forward edge of the box when the lid is closed, a flangeextending downwardly i from the rear edge of the lid, hinge members lprojecting laterally from the flange and adapted to extend behind theangular extensions, and spring means biasing the hinge membersrearwardly toward the angular extensions.

3. In combination a box, lips extending rearwardly from the rear edge ofthe box, said lips having inwardly directed angular extensions, a lidfitting over the box, the forward edge of the lid having a flangeengaging the forward. edge of the box when the lid is closed, a flangeextending downwardly from. the rear edge of the lid, hinge membersprojecting laterally from the flange and adapted to extend behind theangular extensions, spring means biasing the hinge members rearwardlytoward the angular extensions, parts of the lid being adapted to engagethe outside of the angular extensions when the lid is in open position.

l. In combination, a box, a lid fitting over the box, a flange extendingdownwardly from the rear edge of the lid, hinge members extendinglaterally from the lower edge of the flange, angular lips carried by thebox and adapted to engage the hinge members, and spring means forbiasing the lid to the rear to 'anse the hinge members to engage thelips.

5. In combination, a box having a rear wall, a lid fitting over the box,a flange extending downwardly from the rear edge of the lid, hingemembers extending laterally from the lower edge of the flange, angularlips spaced rearwardly from the rear wall of the box and extending overthe hinge members, and spring means for biasing the lid to the rear tocause the hinge members to engage the lips.

In testimony whereof I aflix my signature.

HANS K. LORENTZEN.

